Type-writing machine.



H. V. FENGLER,

I TYPE WRITING MACHINE.

APPLICATION FILED MAY 11 19l5- m 1 232 521 a Patented July 10, 191 r.

2 SHEETSSHEET I.

FIG. I.

INVENTOR= BY M4211 AT TORKE Y WITNESSES:

xii

H. V. FENGLER.

TYPE WRITING MACHINE.

APPLICATION FILED MAY [1, 1915. 1 32,521 0 Patented July 10, 1917.

2 SHEETSSHEET Z.

HERMANN iv. FENGLER,- or wEs'r' .EHILADELPHIA', PENNSYLVANIA, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, DELAWARE.

To all whom it may concern Be it known that I, HERMANN V'. FENGLEB,

I a citizen of the United States, residing'in West Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improve ments in Type-Writing Machines, of which the following is a specification.

This invention relates to mechanism for rotating the platen of atypewriting machine through predeterminedxed distances, which may be greater than an ordinary line-space distance, to facilitatethe feeding of sheets, envelops, or other work-pieces rapidly around the platen, and which may serve, by a single operation, to advance a-workpiece from itsintroductory position to bring .a predetermined point on the work to the printing line on theplaten. The platen-rotating means may also be used for ejecting,

the workiece from the machine, or, in gen 'eral, for any work where a rotation of the platen through a considerable distance at a single operation may be utilized. 4 a The invention may comprise a platen driver, adapted to be reciprocated between fixed stop positions, and operable when moved in one direction to rotate the'platen, but returnable independently thereof, so that the platen is only rotated thereby in' one direction. Adjusting means -may be provided to vary the extent of rotation impartedto the-platen by a complete operation of'the The driving means may thus be adapted for use as a line-spacer for rotating the platen through usualline-space distances, or greater line-space distances than permitted by the ordinary line-spacing mechanism, or through still greater distances as may be required, for example, to place in position on the platen, for the first line ofjwriting, a bill, envelop, or other workiece.

A eature of this invention is the provision of means whereby the platen-rotating mechanism cannot be coupledto thef platen at any other than the normal-starting position of the s'aidil..m'echanism, thus insuring the accurate rotation of the platen,

Another feature relates to the means for positively locking the platen-rotatingmechanism to leases the-operating handle. 1

Another feature is the provision of a sinthe'platen until the operator re OE'NEW YORK, N. .Y., A. CORPORATION OF TYPE-WRITING MACHIIRTE.

' gle means for stopping the platen after havthe handle'has been released.

Another feature-is the provision of means whereby the stopping point of the mecharan s'rafras marina amass.

Specification of Letters Patent. Patentgd July 10, 1917 Application filed ma 11, 1915. Serial 110113303. i

nism may be varied at will, and also the pro- .vision of a scale for indicating the extent the platen is rotated at each-complete op'erationof the platen-rotating mechanism.

In carrying out this invention, an'operating lever may cause a pawl to engage and drive a gear fast to the platen axle, the first'part of the movement of the lever causing' the pawl to engage said gear, and to be lockedthereto, while the continued move ment ofv the lever lmay-"cause the pawl to ,drive the gear and rotate the platen. The

pawl and lever may-be returned by a coiled which may have one end fast to the I spring, platen-driving means, while; the ,other end 7 may be fixed; The spring may be wound by the forward rotation of the driver and serve as astop to limit said rotation.

A disk which may hold the fixed end of the spring, may be mounted concentrically with the platen axle, so 'as to be adjustable rotatively, and thereby partly unwind or .wind the coiled'spring, which will varythe amount of rotation that can be given to the driving member and platenbefore the spring will bewound to its full capacity, arresting the pawl and operating lever. Thedisk may be held in its adjusted position by means of a stationary rack with which engages a tooth I or teeth on the disk, the disk being spring held: in engagementwith the rack. This I disk may-be provided on its periphery with a scale to cooperate with an index on the ngachine, to indicate the extent of rotation which may be giv'ento the platen by a single operation of the driven I l The coiled spring may also be used to return the parts to normal positions after the operating lever is released, and in so doingit may uncouple thedrivingpawl, so that the. pawl and gear cannot again be coupled until the parts are fully returned to normal position. I v

' :Other features and advantages. will hereinafter appear. v

vation of my 1Q] In the accompanying drawings, Figure 1 is afragmentary perspective View of the carriage andplaten frame of an Underwood typewriter, (showing my improved gross line-spaclng mechanism after having rotated the platen through ten-line.- spaces. 1

1 Fig. 2 is a fragmentary front sectional elenism.

Fig. 3 is a disassembled view showing the casing of the mechanism, the driving pawl and disk by which it is carried, the gear on the platen axle, and the driving disk showing thedriving band and the coiled leaf I spring attached thereto.

- Fig. 4 shows the adjustable disk and the spring which cooperates therewith.

Fig. 5 is a side elevation showing the parts in normal position with parts broken away, to show the relation between the pawl and the gear Wheel when the parts are in this position.

Fig. 6 is a sectional side elevation showing the handlemoved just enough to cause the pawl to engage the gear wheel.

Fig. 1s a fragmentary side elevation, showing the parts after having moved sev-' eral line-spaces. This View shows the pawl carrying disk being positively driven by the returning to normal position.

Fig. 10 is a diagrammatic view showing I v the relative position of the pawl and lever,

and the work-sheet just before the operation of the lever to insert the work-sheet.

Fig. 11 is a diagrammatic view showing the relative position of the pawl, the lever, and the paper in the act of being rotated at the operation of the lever.

.The usual platen 1 of anUnderwood type- .writer is secured to an axle 2, rotatably mounted in the end plates 3 of the platen frame, the ends of the axle 2, projecting past the end plates 3 fof the platen frame, and having finger wheels 4 fast thereon, by which the platen may be rotated forwardly or backwardly to an unlimited extent. The platen may also be rotated forwardly by the usual line-space mechanism, comprising a line-space lever 5 to operate on slide 6, having a pawl 6 which engages a'ratchet Wheel 7, fast on the platen axle.

The work-sheet, after being placed 'upon a paper shelf'8, is fed around into position to receive type impressions, by feed rolls 9,

improved line-spacing mecha 10 The platen is usually rotated by the finger wheel 4, or by repeated. operations of the usual line-spacing mechanism.

I provide a lever 11 which may have a hub portion 12, loosely mounted on the platen axle 2, which extends through "the right hand end plate 3, and may be provided at its upper end with a handle 13, this lever having connections with the platen, whereby the platen will be rotated through the desired extent, to bring the printing point of the work-sheet to the printingline of the machine at each complete operation of said lever. I

The driving connections between the lever 11 and the platen, may include a disk 14 to which the leveris connected by means of a flexible band 15, the latter being wound around the periphery of a flange. 16 on said disk 14, with'its'end fast thereto, and extending upwardly and backwardly over a pulley 17, mounted on a stud fixed in a bracket 18, the latter fixed on the end plate 3 of the platen frame, and then forwardly to a pin 19 on the lever 11, to which it is connected.

In pullingthe lever 11 forward, the band 15 is drawn over the pulley'17, and unwinds from the periphery of the flange 16 of the disk 14, rotating said disk in clockwise direction. The first part of the clockwise rotation of the disk 14, causes a cam projection 20 on the under surface of the flange 16, to force a pawl 21 into engagement with a gear wheel 22 fasten the platen axle 2.

The pawl 21 is floatedabove an opening o 23 in a flange 24, on a disk 25, through which it extends to engage'the gear 22 fast on the axle 2. The pawl is held out of engagement with said gear by a leaf-\spring 26, having one end fast to the pawl, while the otherend is fastened to the periphery of the flange 24. The'disk 25 is loosely mounted on the platen axle,and has a flange 24 extending about the peripheryof the gear 22, said flange 24 being inclosed by the flange 16 of the disk 14, and being so situated with respect to disk 14 that at the independent rotation of the disk 25, the cam projection 20, carried on the inner surface of the flange 16, on the disk 14,

will force the pawl 21 against the tension of the leaf spring 26 into engagement with the gear 22 on platen axle 2. After having caused the pawl 21 to be moved into engagement with the gear 22 the disk 14 positively' rotatesthe pawl-carrying disk 25, as shown in Fig. 7, by means of arms 27 on the disk 25, being engaged by the ends of slots 28, on the flange 16. The disk 25 is held against frictional rotation during the coupling operation, by means of a spring detent 29, fast to the-casing ofthe mechanism, and having a dwell or portion adapted to arrest a projection. 30 on the disk 25, and hold said disk until positively picked up by I the ends.v of slots 28 on they flange 13; said slots 28 being long enough to permit sulficient relative movement between the disk 14 and the disk 25, to cause the cam 20 to force the pawl 21 into engagement with the gear 22. 1

The continued forwardmovement'of the operating lever 11 is limited by a coiled spring 31, which when fully wound, arrests all the parts, thus stopping the platen. The spring is fastene at one end to the hub of the disk 14, and has at its other end a loop 32, adapted to be slid over a-pin '33, on a stationary disk 34, loosely mountedcon the platen axle 2.

This. disk may be angularly adjusted to vary the amount of rotation that can be given to the loose end of the spring before the spring is fully wound. The disk 34 is held in its adjusted position by a compression spring 35, which normally holds the disk 34 against the casing, so that projections 36 on said disk 34, enter notches 37" on'the casing of the mechanism. -To adjust the spring 31, the operator moves the disk 34- so as to free the projections 36 from the notches-37, and turns the disk around the axle 2, to wind or unwind the spring,-thereby varying the amount of rotation that may be given to the parts before stopped by the fully wound spring.

When the lever 11 is released at the end of a forward stroke, the parts are returned to normal positions by the spring 31. In returning to normal position, the first action that takes place is theuncoupling of the pawl 21 and the gear 22, this occurring because the pawl-carrying disk 25, is held against frictional rotation by the pawl 21,

whichis in engagement with the gear 22,

until the disk 14 hasrotated under the influence of the spring .31 sufficiently to move the cam 20 thereon, away from the pawl 21,

thereby-pennitting the spring26, carrying said pawl,-to move the pawl-21 out of engagement with the teeth of the gear 22. After this uncoupling takes place, the arms 27 of the pawl-carrying disk 24 are picked up by the opposite ends of the-slots 28in the disk;14, and these return to normal position with said-disk 14.

" The adjustable disk 34 may be provided around its'periphery with a row of numbers or a scale 38, which, when brought into reg- 55' ister with an index 39 on the casing of the mechanism, will indicate the numberof line-v spaces that the platen will move at each complete operation of the lever 11. The index numbers of the'scale 38 are at equal intervals with the adjusting notches 37 in the stationary drum orcasing, and these notches are so spaced that each step in the adjustment of the disk 34 represents a. line-space intervaL- That is, an adjustment of the disk 34 to move a holding. lug 36 from one notch to the next adjacent notch, effects a difference in the extent of rotation of the platen permitted by the driver, equal to a line-space interval, such interval being de termined by the angular distance between adjacent teethpf the'line-space wheel 7. The index pointer 39 is'preferably so positioned that the index number opposite the pointer indicates'the number of line-spaces through which the platen may be rotated by a throw of the driving lever'll. Thus,

for example, as shownin Fig.1, the index number 10 is opposite the pointer 39,, and indicates that the throw of the lever 11 will effect a rotation of the platen through ten line-spaces.

The driving lever 11, together with the disk 14 and connecting band 15, forms a driver for rotating the platen, said driver being releasably connected to the platen through an interponent comprising the disk 25.- Said interponent disk has a lost motion connection throughthe lugs-.27 and notches,

28 .with the driver, permitting the interponent to be clutchedto, or unclutched from the platen by means of the cam 20 controlling dog or pawl 21, said clutching and unclutching taking place during the lost motion or rotation of the driver relative to the interponent disk. i

It will be seen that when the pawl 21 -is uncoupled from the gear 22, which uncoupling takes place as the lever 11 commences its return movement, the pawl cannotagain be coupled to the gear before the pawl-carrying disk 25 has been returned to its starting position, in which it is held bythe detent 29. That is, a forward rotation of the driver would cause the cam'2Q to drive .the interponent forward without forcing the pawl into engagement with itsratchet, ex-

cept when the interponent is held by the dethe index 39. The release of the driver by the operator while the driver is in any position efi'ects an automatic return of the driver to starting position and release of the platen.

Variations may be resorted to within the scope of the invention, and portions of the improvements gnay be" used without others.

Having thus described my invention,,1 claim: i

1. The combination with a platen and a driver to rotate the platen, said driver'having a forward and return movement from the continued forward vmovement of the driver, the interponent being released from 'the' platen during the initial portion of .the return movement of the driver, thereby permitting the platen to remain at rest during the return of tion.

driver to rotate the platen, said driver having a forward and return movement from its a normal position of rest, of an interponent I while thedriver-is in its normal position of .rest to permit the platen to be rotated inbetween the driver and platen, the interponent being disconnected from the platen dependently: of the driver, said driver having'a lost motion connection with. the interponent, the lost motion beingvt'aken up during the initial-forward movement of the driver, means pperated during said initial movement to-connect theinterponent with the platen to rotate the-latter duringthe continued forward movement of the driver, the interpon'ent being released from the platen during the initial portion of the return movement of the driver, thereby per-. mittingthe platen to remain at rest during the return of thedriver to its starting position, said interponent being returned to starting. position when the driver is returned, and means to yieldingly hold the interponent in its starting position during said initial movement of the driver for connecting the interponent with the platen, said interponent free to be rotated by the driver without its connection with the platen beingeifected; when the driver. is moved forward from an intermediate position without first" having returned the .interponent to said holding position.

3. The combination with a platen and 'a driver to rotate the platen, saiddriver having a forward and return movement from its normal position ofrest, of an interponent between the driver and platen, the interponentbeing' disconnected fgom the platen while the driver is in its normal position of rest to permit the platen to be rotated inde-- pendently of the driver, said driver having a lost motion connection with the inter ponent, thelost motion being taken up during the initial forward movement of the driver, means operated during said initial the driver to'iits starting posi- 2. The combination with a platen and a 'interponent, and means operated movement to connect the interponentwith the platen to rotate the latter during the continued' forward movement of the driver, the interponent being released from the platen during the initial portion of the return movement-of the driver, thereby permitting the platen to remain atrest during the return of the driver to its starting position, means to automatically return the driver and interponent when the driver is "released at the completion of" its forward 'movement, and-a stop movement of the driver.

to limit the return U" 4. -The combination with aplaten, of driving means to rotate the pla'ten,-s aid means comprising a lever and a coupling device both rotatable about the platen axis, means connecting. said coupling device and lever -tocause therotation of the lever in one direcftion to rotate said coupling device about the platen axis. in 'the reverse direction, and means to connect said coupling device with ting the coupling device to rotate in the reverse direction independently'of the platen.

5. The combination with' a rotary platen and platenaxle, of driving means compris- :the platen for rotating .the platen with the coupling device in one direction and permitving a driving lever and av coupling device 2 both loosely mounted'for rotation on the platen axle, a flexible driving connection between said leverand coupling device, direct-v mg means for said connection,- whereby,

when said lever is rotated in one direction, the coupling device is caused to rotate 1n the reverse direction, and means to connect said coupling device to the platen to rotate the latter with the coupling .device in one direction and permitting the coupling, d'evice to be rotated in the reverse direction in- 'dependently'of the platen,

\ 6. .The combination with a rptary platen and platen'axle, of driving means comprising a driving lever and a coupling device both loosely mounted for rotation on the platen axle, a flexible driving .connection,be.-'

tweensaid lever and couplingdevice, directing means for said connection, wherebywhen said lever is rotated infone direction, the-coupling device is caused to rotate in the reverse direction, means to connect said cou-' pling device to the platen to rotate the latter' in one direction and permitting the con- 1 pling device to be rotated in the reverse direction independently of the platen, the connecting means between the coupling device and the platen comprising an interp'onent having a"lost-motion connection with said coupling device, permitting a limited-'movement of the couplingdevice relatively to the during said relative movement to connect ponentto the platen to rotate therewith, said coupling device when rotated in the reverse direction, permitting the interponent to be the mter- J may be rotated in either direction independently of the driving means. 3'. The combination with a platen and a driver to rotate the platen, said driver hav ing a forward and return movement from its normal position of rest, of an interponent between the driver and'platen, the interponent being disconnected from the vplaten while the driver is inits normal position of rest to permit the platen to be rotated inde pendently of the driver, said driver. having" a lost motion connection with the interponent, the lost motion being taken up during the initial forward movement of the, driver, means operated during said initial movement to connect the interponent-with the platen to rotate the lattervduri-ng the continued forward movement of the driver, the interponent being released from the platen during the initial portion ofthe return movement of the driver, thereby permitting the platen to remain atrest during the return of the driver to its starting posi-. tion, and, a spring to automatically return the driver to starting position, said spring,

also forming a means to limit the forward throw of the driver, and thereby determine the distance through-whichthe platen may be rotated by an operation of the driver. I,

'8. The combinationwith a platen and a. driver to rotate the platen, said driver having a'forward and return movement from its-normal position of rest, of an interponent between the driver and platen, thev inter-. ponent being disconnected from the platen while the driver is in its normal position of rest to permit the platen to; be rotated independently of the driver, said driver having a lost motion connection withfthe interponent, the lost motion being taken up during the initial forward movement of the driver, means operated during said initial 'movement to connect the interponent with the platen to rotate the latter during the continued forward movement of the driver,

- .the interponent being released from the platen during the initial portion of the return movement of the driver," thereby permitting thevplaten to remain atrest during the return of the driver to its starting position, and a coil spring to automatically return the driver when the latter is released at the completion of the forward throw, said spring being connected to the driver and to an adjusting device, and limiting the movement ofthe driven relatively to the adjusting device to thereby determine the throw of the driver, said adjusting device adjustable to vary the throw of the driver.

9. The combination with a platen and a rotary driving means for rotating the platen, of a coil spring 'cdnnected at one end tothe driving means, a stationary device to which the other end of the spring is anchored,

- the driving means.

said spring arranged to control the extent of rotation of the driving" meansin one direction by serving as a stop to limit said rotation, and a stop to, limit the rotation of saiddriving means. in the-reverse direction. i v v p 10. The combination with a platen and .a, rotary driving means forrotating the platen, of a coil spring connected at oneend to, the driting means, a stationary device to which the other end of the, spring is anchored; said spring permitting alimited rotation of the driving means'in one direction and serving as a stop to limit said rotation,-and' a stop to limit the rotation of said device to which the spring is connected said driving means 1n the reverse tilted/1011,, Y

being adjustable to limit the position of the driving means determined by said spring ponent, -means controlled by the driver to connect the interponentwith the platen dur-.

ing said limited movement, so that the platen is rotated by the driver during the continued movement of the driver, and a spring detent to hold the interp on'ent while the connection between the interponent and platen .is being efi'ected, said detent positioned to hold ,the interponent only is in "starting position.

12. The combination with a rotary platen and platen axle, of means for rotating the platen a predetermined fixed distance in when the latter a one direction, said means comprising a driving element loosely mounted for rotation about the platen axis, an interponent hav ing a lost motion connection with said driv-" ing element and positively driven by said element, except while said lost motion is being taken up, adriving gear connected to the platen to 'rotateftherwith, a 'dog carried by saidinterponent, means controlled by said driving element during its initial movement from starting position and while ,the lost motion betw'een'the said element and interponent is being taken up, to move said dog into driving engagement with said gear, whereby the continued rotation (if the driving element drives sai'd interponent and through said dog and gear drives the platen,

and means to limit the rotation of the platen by said driver, said driving element during the initial portion of its return movement, being movable relatively to the interponentto release said 'dogand thereby release the platen from the interponent, the latter, during the continued rotation of the driving elemg t, beings-returned thereby to starting position.

v 40 driver and pawl carrier, and means to hold of a ratchet connected thereto, a pawl movable into and ,out of driving engagement .with the ratchet, a carrier for said pawl, a

driver, said carrier. forming an interponent between the driver and platen and having a lost motion connection with the driver, and a cam on the driver to move the pawl into engagement with the ratchet during the.

carrier, said driverope'rable during its continued movement to positively drive. said carrier and thereby drive the platen, said lost motion connection permitting the cam to be moved. out of position to hold the pawl when the driver is moved in the reverse direction, whereby the pawl is released from the ratchet and the platen permitted to I'GI'IIZUILat rest during the return of the 'rier, said drive-r operable during its driver.

.' 14. The combination with a rotary platen,

of a ratchet connected thereto, a pawl movable into and out of driving engagement with the ratchet, a carrier for said. pawl, a driver, said carrier forming an interponent -betweenthe driver and platen and having a lost motion connection with the driver, a

cam on the driver, to move the pawl into engagement'withthe ratchet during the movement of the driver relatively to said carconsaid said tinned movement to positively drive carrier andthereby drive the platen,

v .lost motion connection permitting the cam to be moved out of position to hold the pawl when the driver is moved in the reverse direction, whereby the pawl is released from the ratchetv and the platen permitted to remain at rest during the return of the driver, a stop to limit the return movement of the the pawl carrier against movement while the driver operates to connect the pawl and ratchet, said holding means operative only when the carrier is .in its starting position,

whereby the driver, when released from the platen. by the release of the pawl from its ratchet, can only .be connected to drive the platen, by first returning the driver to starting position. p 15. 'The combination' with a platen'and a reciprocating drive'r having a limited movement in' both directions, of means whereby the driver during its movement in one direction is connected to rotate the platen through a predetermined distance, and during its respondingly vary the throw of the driver.

16. The combination with a platen, of a driver to rotate the platen, said driver havdriver, and an index set by the adjustment of said spring to automatically indicate the length of throw of the driver for any adjustment of the spring. movement of the driver relatively to said anchored, the forward movement of the driver being limited by said spring, said support adjustable to vary the throw of the driver, and an index comprising a'scale and pointer relatively adjusted by the adjustment of said support to-indicate the length of throw of the driver.

-18. The combination with a rotary platen and platen axle, of meansto rotate the platen through a predetermined fixed distance, said. means comprising a driving element loosely mounted on the platen axle,

means to connect said driving element to the 5 platen, a stationary casing inclosing said element, a spring connected atone end to said driving element, said casing comprising a cover plate or cap to which the other end of the spring is connected, said spring'limiting the forward rotationof the driving element and operable automatically to return said element, said. cap rotatively adjustable to adjust said spring, and thereby vary the extent of rotation of said element, an index comprising a scale and pointer" carried by said casing and cap, said scale having a series of numbers so spaced and arranged that the number opposite the pointer will always indicate the number of line-spaces through which the platen may be rotated by the driving element when said cap ,is in any position of adjustment.

19. The combination with a platen, of

- means to rotate the platen, said means comprising a lever having a handle and a driver,

said lever and driver both having an axis of rotation coincident with the platen axis, means forming a driving connection between said handle and.driver, whereby when the handle is moved in one direction, said driver is rotated in the reverse direction at a higher angular speed, andmeans to cause said driver, when rotated in one direction, to drive the platen iii-the reverse direction.

20. The combination with a rotary platen and platen -axle,of driving means comprising a handle and a driver both loosely mounted for rotation on the platen axle, a flexible band forming a driving connection between said driver and the handle, directing means for said band, whereby whe'n the handle is rotated about the platen axis in one direction, said driver is rotated in the reverse direction, and means for causing 'said driver to rotatethe platen 21. The combination with a,platen and a driver to rotate the platen, said driver having a forward and return movement from its normal position of rest, of aninterponent between the driver and platen, the interponent being disconnected from the platen while the driver is in its normal position of rest to permit the platen to be rotated independently of the driver, said driver having a lost motion. connection with.

the interponent, the lost motion being taken up during the initial forward movement of the driver, means operated during said initial movement to connect the interponent with the platen to rotate the latter during the continued forward movement of the driver, the interponent being released from the platen during the initial portion of the return movement of the driver, thereby permitting the platen to remainat rest during the return of the driver to its starting position, a spring to automatically return the driver to starting position, said spring also forming a means to limit the forward throw of the driver, and thereby determine the distance through which the platen may be' rotated by an operation of the driver, means forming an anchor for said spring, said anchor adjustable to vary the length of throw of the driver, and means adjustable WIth sald anchor to indicate the number of to which the spring is connected'being adjustable, to limit, the position of the driving means determined by said spring and there by vary the, exter it of rotation of the driving means, and indicating means adjusted by the adjustment ofsa'id' device to indicatethe distance through which the platen may be rotated by an operation of the driving 23. The combination with a platen and platen axle, of a drivinglever and an interponent through which the driving lever may i drive the platen, sald interponent and lever 1 both looselymounted for rotation on the platen axle, mechanism forming a drivlng connection between saidlever and interponentpsaid mechanism comprising a flexible bandand means to connect said band with the interponent, a guide pulley over which said bandrruns and whereby the band is directed to rotate the interponent inone direction when the lever is rotated in the opposite direction, and means to connect the platen with the interponent to be .driven' thereby in one direction and permitting the interponent to rotate independently of the platen in the. opposite direction,

24. The combination with a platen and platen axle, of a driving lever and an interponent through which the driving lever may drive the platen, said interponent and lever both loosely mounted for rotation on the platen axle, a flexible band, means forming with said band *a driving connection between said lever and interponent, a guide pulley over which said band runs and whereby the band is directed to rotate the interponent in one dition when the lever is rotated in the opposite direction, means to connect the platen with the interponent to be driven thereby in one direction and permitting the interponent to rotate independently of the platen in the opposite direction, a stationary casing in-- closing said interponent, a cover plate or cap for said casing and rotatably adjustable on the casing,-and means forming a connec- =tion betweensaid cap and said interponent to limit the rotation 0 f the latter and theredetermine the distance through which the platen may be rotated at each operation of thedriving lever, cap serving to vary the extent of said rotation. i

25. The combinationlwith a platen and platen axle,

of a driving lever and an interponent through which the driving lever may drive the platen, said interponent and lever both loosely mounted for. rotation on the the adjustment of said platen axle, a flexible band, means forming with said band a driving connection between said leverand interponent, a gulde pulley over which said band runs and whereby the I band is directed to rotate. the interponent in v one direction when the,lever is rotated in v the opposite direction, means to connect the platen with the interponent to be driven thereby in one direction and permitting the interponent to rotate independently of the platen in the opposite direction, a stationary casing inclosing said interponent, a cover plate or cap for said casing and rotatably adjustable on the casing, means forming'a connection between said cap and said interponent to limit the rotation of the latter and thereby determine the distance through which the platen may be rotated at each operation of the driving lever, the adjustment of said cap serving to vary the extent of said rotation, and indicating means comprising'index numbers and a pointer on the said cap and easing, the numbers being through which the platenm spaced and positioned relatively to the pointer to indicatefor any adjustment of the cap, the number of line-space distances ay be rotated by each operation of the driver.

26. The combination with a platen, of a handle having a concentricaxis of rotation with said platen, a ribbon connected at one end to. said handle and at the other end to rotate said platen, and adjustable means connected to thelatternend of said platen for variably limiting the driving movement of said handle and the rotary movement of said platen.

27. The combination with a rotary platen,

' of a platenframe, a handle mounted thereon, a band or flexi'ble connection attached at one end to said handle, a driver revoluble one end to said handle, a driver revoluble for releasably connecting said driver to said platen, and a spring for returning said 40 about the platen axis and normally disconnected from said platen, the other end of said flexible connection being attached to' said driver, a pulley on said platen frame over which said flexible connection runs between said handle and said driver, means driver.

29. The combination-with a-rotary platen, of ,a platen frame, a handle mountedthereon, a band or flexible connection attached at one end tosaid handle, a driver revoluble about the platen axis and normally discondriver from the of said handle.

nected from said platen, the other end of said flexible connection being attached" to said driver, a pulley on said platen frame over which said flexible connection runs between said handle and said driver, means for releasably connecting said driver to said platen, and spring for returning said driver, said flexible connection being'wound around said driver more than once, to enable a single stroke of said handle to impart more than an entire revolution to said platen. 30. The combination with a rotary platen, of aplaten frame, a handle mounted thereon, a band or flexible connection attached at one end to said' handle, a driver revoluble about the platen axis and normally disconnected from said platen, the other end of said flexible connection being attached to .said driver, a pulley on said platen frame over which said flexible connection runs between said handle and said driver, means for releasably connecting said driver to said platen, a spring for returning said driver,' I

and relatively adjustable stops for limiting the stroke of said driver.

31 The combination with a rotary platen, of a platen frame, a handle mounted thereon, a band or flexible connection attached. I

at one endto saidhandle, a driver revoluble about theplaten axis and normally disconnected from said platen, the other end of said flexible connection being attached to said driver, a pulley on said platen frame over which said flexible connection runabetween said handle'and said driver, means for releasably connecting said driver to said platen, and coupling means operating to couple the driver to the platen upon one I HERMANN'V. FENGLER. Witnesses: a

WILLIAM A. HARTNETT,

., 'PLL. CASSELBERRY.

stroke of the handle, and to releasethe platen at the other stroke 

